Belt fastener



June 4, 1935. s. AMANTEA 2,003,987

BELT FASTENER Filed Oct. 50, 1933 INVENTOR Samuel Amancea,

ATTORNEYS Patented June 4, 1935 I UNITED STATES PATENT OFFICE BELT FASTENER Samuel Amantea, Niagara Falls, N. Y. Applieation october so, 1933. Serial No. 695,929

2 Claims. (Cl. 2433) This invention relates to fasteners and partion 25, similar in size and form to body porticularly to hook type fasteners for use in contion l5, and having openings 26 corresponding to nection with power transmission belts and the openings l9. Along one edge of body portion 25 like. are formed a plurality of hooks 21 for seating .5 More particularly this invention relates to a about the cylindr portion of P and 5 type of belt fastener wherein two parts are proextending into recesses 18. Each hook is of width vided for attachment to the, ends of a belt, one substantially equal to the corresponding recess l8 part having a hook and the other a bearing for and has its inner surface curved of a radius corengagement by the hook in such manner a to responding to that of cylindrical portion l6. Ao-

10 permit hooking, of the two parts together after cordingly the axis of curvature of the inner sur- 10 they are attached to the belting material, and as faces of the hooks coincides with the axis 22 of to permit of relative movement between the e Cylindrical portion and this axis is parts, when the belt is in use, in order to allow very sli t y W, the plane of the bottom of the joined portion of the latter to conform closely body portion 25. The mouth 28 of each hook 21 to the curvature of pulleys or other driving, driven is narrower than the diameter of cylindrical p 15 or guide members. tion It; and of width slightly greater than the The invention resides in the formation, arthickness of arm portion I1. rangement and manner of connection of the By reason of this formation the p W component parts including the belting material, a ularly disposed as shown in Fig. 3, may be as set forth in the following description, which engaged by moving them (in the direction of the 20 is made in conjunction with the accompanying arrows) longitudinally of the axis of cylindrical drawing, wherein: portion HS in such manner as to slide the hook Fig. 1 is a perspective view of a complete fasp t o ev h eylindlieel p n in tener device connecting the ends of a belt, porother angul relationships the parts then Will 5 tions of the belt being broken away; be locked against lateral displacement by the Fig. 2 is a view of the two parts of the fastener engagement of the end portions of hooks 21 brought into position for assembly; within recesses l8.

Fig. 3 is a sectional view through one end of the In app y y hook vfastener, the endsK 0f the belt and the attached part of the fastener, the b lt ar b v l part I3 is secured to the outer other part being indicated in broken lines for surface of the belt at one end and part M to 30 clarity of illustration; and the outer surface at the other end. While vari- Fig. 4 is a showing of the curvature of the belt Ous k ds of cur ng means may be used, I preengaging surface of the fastener, fer to pass rivets 29 through the belting material As illustrated in Fig. l, the ends II and I2 of and apertures IS, the walls of the latter preferflexible belting are secured together bya fastener ably having teats 3| to partially spread the 5 which comprises parts l3 and M which preferably Shanks of the rivets The belt then y be are metal castings. Part l3 comprises a substanp ss d a d the transmission p ey guides, tially flat body portion l5 and a substantially e -,& the Darts 13 and i4 e t d as herecylindrical bearing portion l6 connected at interinbefore described. O i t p y are m tvals to the body portion by arm portions H, such ed upon shaft ends, the parts l3 and It may 40 arms providing recesses I8 therebetween. Openbe connected before the belt s Put On th m. ings l9 extend through the body portion I5 for When in operative relation, the ends II and receiving rivets or like fasteners by which the 12 0 t belt y he Very Close together, Since part is connected to the belt end H. the beveled ends provide a recess for the hooks According to my invention the axis of the oylinn Op ation, the outer surface of the belt 45 drical bearing lies in the plane or very slightly Will ordinarily be under tension, and, by reabelow the plane of the bottom surface (the surson of the disposition of the axis of cylindrical face which engages the outer, or tensioned, surportion It in the plane of this Outer Surface, face of the belt). This relationship is illustrated such axis will also be in the plane of tension in Fig. 3 of. the drawing wherein line 2| reprewhich overcomes the tendency of the belt to 50 sents an extension of the bottom plane of body buckle at the fastener, and thereby eliminates portion I5, and, as will be seen, passes through wear upon the belt and fastener caused by movethe diametral center 22 of the cylindrical bearment of the parts into aligned relation as the ing portion 16. fastener passes onto a pulley.

Part l4 comprisesasubstantially flat body por- While herein and in the appended claims I 55 have referred to the body portions I5 and as being substantially flat, it will be understood that such terminology includes formations of the portions with slightly concaved under surfaces, which may be preferred where the belt is intended for use with a pulley of relatively small radius. As shown in Fig. 4 the belt engaging surface 32 of each fastener may be a cylindrical surface having a radius R. It will be understood further that the terms upper and lower and the like are used herein merely for convenience of description and not as limitations, since the parts may be inverted or disposed at any desired inclination.

I claim:

1. In a belt and fastener therefor, a belt having the ends thereof beveled to define a. recess of substantially V-shape on the outer surface of the belt when the ends are brought into adjacency, a part secured to one end of the belt and having a body portion with a substantially flat lower surface seated upon the outer surface of the belt, and a hook portion integral with the bodyportion, said hook portion being disposed in the recess between the belt ends and having the mouth thereof opening upwardly, another part secured to the other end'of the belt and having a body portion with a substantially fiat lower surface seated upon the outer surface of the belt, and said other part having an integral cylindrical portion engaged by said hook portion with the longitudinal axis substantially coincident with the axis of curvature of the inner surface of the hook, and arm portions connecting the cylindrical portion to the body portion of said other part, said arm portions extending from the body portion in downwardly inclining relationship and the axis of the cylindrical portions being at least as low as the plane of the outer surface of the belt.

2. In a belt and fastener therefor, a belt so formed that the ends thereof define a recess when said endsare brought into operating relation, a part secured to one end of the belt and having a body portion with a substantially flat lower surface seated upon the outer surface of the belt, and a hook portion integral with the body portion, said hook portion being disposed in the recess between the belt ends and having the mouth thereof opening upwardly, another part secured to the other end of the belt and having a body portion with a substantially flat lower surface seated upon the outer surface of the belt, and said other part having an integral cylindrical portion engaged by said hook portion with the longitudinal axis substantially coincident with the axis of curvature of the inner surface of the hook, and arm portions connecting the cylindrical portion to the body portion of said other part, said arm portions extending from the body portion in downwardly inclining relationship and the axis of the cylindrical portions being at least as low as the plane of the outer surface of the belt.

SAMUEL AMANTEA 

